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Retirement Plans (Details) (USD $)
1 Months Ended 3 Months Ended 12 Months Ended
Aug. 31, 2013
Sep. 30, 2013
Sep. 30, 2012
Jun. 30, 2013
Retirement Plans [Abstract]        
Service cost   $ 0 $ 1,000  
Interest cost   42,000 46,000  
Expected return on plan assets   (15,000) (18,000)  
Amortization of net loss   5,000 2,000  
Net periodic benefit cost   32,000 31,000  
German Subsidiary Defined Benefit Plan [Member]
       
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items]        
Employer contributions   7,000 8,000  
United States Defined Contribution Plan [Member]
       
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items]        
Employer contributions   43,000 98,000  
Employer matching contribution (in hundredths) 50.00%     25.00%
Employee contribution subject to employer match (in hundredths) 5.00%     5.00%
United Kingdom Defined Contribution Plan [Member]
       
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items]        
Employer contributions   $ 17,000 $ 14,000  
Minimum [Member] | United Kingdom Defined Contribution Plan [Member]
       
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items]        
Employer matching contribution (in hundredths)   4.00%    
Maximum [Member] | United Kingdom Defined Contribution Plan [Member]
       
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items]        
Employer matching contribution (in hundredths)   7.00%